实体

@Entity@Table(name = "")public class BigScreenSet implements Serializable {    /**     * 建一个实体，最重要的几个关键注解：     *  @Entity     *  @Table(name = "")     *  @Id             //特别是主键啊     *  @Column(name = "ID", length = 32, nullable = false)     */    @Id    @Column(name = "ID", length = 32, nullable = false)    private String id;    @Column(name = "DEPT_ID", length = 32)    private String deptid;    @Column(name = "VALUE",length = 4000)    private String value;    @Column(name = "OPER_ID")    private String operid;    @Column(name = "OPER_TIME")    private Date opertime;    public String getId() {        return id;    }    public void setId(String id) {        this.id = id;    }    public String getDeptid() {        return deptid;    }    public void setDeptid(String deptid) {        this.deptid = deptid;    }    public String getValue() {        return value;    }    public void setValue(String value) {        this.value = value;    }    public String getOperid() {        return operid;    }    public void setOperid(String operid) {        this.operid = operid;    }    public Date getOpertime() {        return opertime;    }    public void setOpertime(Date opertime) {        this.opertime = opertime;    }